S
M
T
W
T
F
S
26
55°
44°
27
69°
39°
28
67°
43°
29
69°
48°
30
73°
48°
1
69°
38°
2
62°
48°
3
64°
40°
4
78°
56°
5
86°
62°
6
81°
59°
7
63°
46°
8
66°
50°
9
72°
52°
10
78°
59°
11
73°
49°
12
66°
46°
13
72°
54°
14
73°
56°
15
76°
54°
16
76°
54°
17
77°
55°
18
80°
59°
19
79°
60°
20
79°
60°
21
80°
59°
22
76°
52°
23
72°
52°
24
72°
54°
25
74°
56°
26
75°
56°
27
74°
54°
28
74°
56°
29
75°
55°
30
75°
59°
31
77°
62°
1
80°
62°
2
77°
61°
3
77°
61°
4
81°
63°
5
82°
64°
6
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hanover
Hanover's May 2026 forecast shows daily high temperatures ranging from 63° to 86°, with overnight lows between 46° and 64°. The average high for May is 76° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Hanover. See also: June | July | August.